73
W&T
Subject to errors and changes
7.1.3 ...Using a serial interface
In contrast to the procedure described above, you can use the
serial port to change an already existing IP address for the Web-
Graph 1x Thermo-Hygrometer.
Connect the RS232 port on the device to a PC (null modem
cable, with the Web-Graph 1x Thermo-Hygrometer only pins 2,
3 and 5 are allowed to be connected) and start a terminal pro-
gram (e.g., Hyperterminal). Establish a direct connection in the
program through your COM port and set the serial properties
to
9600 baud, no parity, 8 bits, 1 stop bit, no protocol
. Force a
reset by interrupting power while holding down the „x“ key until
the reply
„IPno.+<Enter>“
appears. Enter the IP address using
conventional notation (xxx.xxx.xxx.xxx) and finish the entry
with
<Enter>
. You can also enter the subnet mask and gateway
and turn the BOOTP client off directly by using the following
syntax after the entry prompt (
IPno.+<Enter>
):
<IP-Adresse>,<subnetmask>,<gateway>-0
!
If you make a typing error when entering, the text cannot
be corrected using the Backspace key. The procedure
must be repeated.
If the entry was correct, this is acknowledged by the assigned
parameters, otherwise the monitor displays the current IP
address together with the message „
Fail
“. This procedure may
be repeated as often as desired.
To turn off the BOOTP (DHCP) functionality directly, enter the
expression „-0“ directly following the parameters (e.g.
192.168.1.2-0)
